PVA resin is a kind of heavy polymer. It is white or light yellow cotton-like, Granular or powdery in appearance. Its molecular formula is［CH2CHOH］n，and the molecular formula for some of the PVA is -［CH2CHOH］n-［CH2CHOOCCH3］m-. PVA is non-toxic, insipid and harmless. PVA is water-soluble and the solvent provide good viscosity and film building. It can withstand oils, lubricants, hydrocarbons and most other organic solvents. PVA has better chemical stability and insulatibility, and provide ease in firm building; It possess the typical chemical properties of polyols and can carry out process of esterification, etherealization, aceatalization etc.
Application
- In the textile industry, they are mainly used as yarn pulp, fabric finishing agents, and raw materials of vinylon fibers.
- In the construction and decoration industries, they can be used as mortar cement additives, paint additives for interior and exterior walls, and molding plate adhesives.
- In the chemical industry, they can be used as dispersants, polymerization emulsifiers, and raw materials for the production of PVF, acetal and butyral resins.
- Inlumbering and paper-making industries, they can be used as adhesives.
- In agriculture, they can be used as soil improvers, pesticide adhesion synergist and PVA film.
- In petroleum exploitation, they can be usedas well-cementingagents.
- In addition, they can also be used in cosmetics, pharmaceuticals,printing ,ceramics, steel, electronics, electroplating, and so on.
Grade & Specification
1. Partially Hydrolyzed PVA
| Product Grade |
Hydrolysis | Viscosity | Volatiles | Ash | pH Value |
Purity |
| (mol%) | (cps) | (%) ≤ | (%) ≤ | (%) ≥ | ||
| PVA0388 | 87.0-89.0 | 3.0-4.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0488 | 87.0-89.0 | 3.5-5.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0588 | 87.0-89.0 | 4.5-6.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0888 | 87.0-89.0 | 6.5-9.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1088 | 87.0-89.0 | 8.0-11.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1388 | 87.0-89.0 | 11.0-15.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1588 | 87.0-89.0 | 15.0-21.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1788 | 87.0-89.0 | 20.0-26.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2088 | 87.0-89.0 | 28.0-35.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2288 | 87.0-89.0 | 35.0-43.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2488 | 87.0-89.0 | 44.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2688 | 87.0-89.0 | 50.0-58.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2688H | 87.0-89.0 | 58.0-90.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA3088 | 87.0-89.0 | 90.0-110.0 | 5.0 | 0.5 | 5-7 | 93.5 |
2. Fully Hydrolyzed PVA
| Product Grade |
Hydrolysis | Viscosity | Volatiles | Ash | pH Value |
Purity |
| (mol%) | (cps) | (%) | (%) | (%) ≥ | ||
| PVA0399 | 98.0-99.9 | 3.0-4.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0499 | 98.0-99.9 | 4.0-5.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0599 | 98.0-99.9 | 5.0-6.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1099 | 98.0-99.9 | 9.0-12.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1399 | 98.0-99.9 | 13.0-17.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1599 | 98.0-99.9 | 18.0-22.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1799 | 98.0-99.9 | 22.0-30.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2099 | 98.0-99.9 | 34.0-43.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2299 | 98.0-99.9 | 42.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2499 | 98.0-99.9 | 55.0-68.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2699 | 98.0-99.9 | 68.0-78.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2699H | 98.0-99.9 | 78.0-94.0 | 5.0 | 0.5 | 5-7 | 93.5 |
 3. Medium Hydrolyzed PVA
| Product Grade |
Hydrolysis | Viscosity | Volatiles | Ash | pH Value |
Purity |
| (mol%) | (cps) | (%) | (%) | (%) ≥ | ||
| PVA0597 | 96.0-98.0 | 5.0-6.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1595 | 94.0-96.0 | 16.0-22.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1792 | 90.0-94.0 | 20.0-30.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1797 | 96.0-98.0 | 22.0-29.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2092 | 90.0-94.0 | 31.0-38.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2492 | 90.0-94.0 | 48.0-58.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2697 | 96.0-98.0 | 75.0-80.0 | 5.0 | 0.5 | 5-7 | 93.5 |
4. Fine Particle PVA, S-Grades
| Product
Grade |
Hydrolysis | Viscosity | Volatiles | Ash | pH
Value |
Purity |
| (mol%) | (cps) | (%) | (%) | (%) ≥ | ||
| PVA0588S | 87.0-89.0 | 4.5-6.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0588S2 | 87.0-89.0 | 4.5-6.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA0588S3 | 87.0-89.0 | 4.5-6.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1788S | 87.0-89.0 | 20.0-26.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1788S2 | 87.0-89.0 | 20.0-26.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1788S3 | 87.0-89.0 | 20.0-26.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2088S | 87.0-89.0 | 28.0-35.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2088S2 | 87.0-89.0 | 28.0-35.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2088S3 | 87.0-89.0 | 28.0-35.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2488-40 | 87.0-89.0 | 44.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2488-60 | 87.0-89.0 | 44.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2488S | 87.0-89.0 | 44.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2488S2 | 87.0-89.0 | 44.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2488S3 | 87.0-89.0 | 44.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2488S4 | 87.0-89.0 | 44.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1799-40 | 98.0-99.9 | 50.0-58.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1799S | 98.0-99.9 | 50.0-58.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1799S2 | 98.0-99.9 | 50.0-58.0 | 5.0 | 0.5 | 5-7 | 93.5 |
5. Low Foaming PVA
| Product Grade |
Hydrolysis | Viscosity | Volatiles | Ash | pH Value |
Purity |
| (mol%) | (cps) | (%) | (%) | (%) ≥ | ||
| PVA0588A | 87.0-89.0 | 4.5-6.5 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA1788A | 87.0-89.0 | 20.0-26.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2088A | 87.0-89.0 | 28.0-35.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2488A | 87.0-89.0 | 44.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
| PVA2688A | 87.0-89.0 | 44.0-50.0 | 5.0 | 0.5 | 5-7 | 93.5 |
6. Special Modificated PVA
| Product Grade |
Hydrolysis | Viscosity | Volatiles | Ash | pH Value |
Purity |
| (mol%) | (cps) | (%) | (%) | (%) ≥ | ||
| PVA2488HT | 87.0-89.0 | 44.0-55.0 | 7.0 | 0.7 | 5-7 | 91.5 |
| PVA0572 | 71.0-74.0 | 4.5-6.5 | 5.0 | 1.0 | 5-7 | 91.5 |
| PVA1895 | 94.0-96.0 | 21.0-29.0 | 5.0 | 0.7 | 5-7 | 91.5 |
| PVA0486 | 84.0-87.0 | 3.0-5.0 | 5.0 | 0.7 | 5-7 | 91.5 |
Packing
products in cotton-like form shall be packed with knit bags made of polypropylene and colorless medium density polythene film, with net weight of 12.5kg.
Products in granular or powdery form shall be packed with knit bags made of polypropylene and colorless medium density polythene film with net weight of 20.0kg or 25.0kg.
Storage
it shall be stored indoor in a well ventilated and dry room, Prevent exposure to dampness, sunlight and rain.
Transportation
During transportation, the products shall be moved gently to prevent damaging the packing bags. Avoid direct contact with Naked flame, when fire happens, any fire fighting equipment may be use to extinguish the fire.